Apparatus for dressing or polishing rolls



(No Model.) 3 Sheets-Sheet 1. R. G. PILKINGTON.

APPARATUS FOR DRESSING 0R POLISHING ROLLS.

No. 573,528. Patented Dec. 22, 1896.

WITNESSES: g /N N7'0/-? Y (No Model.) 3 Shets8heet 2. R. G. PILKINGTON.APPARATUS FOR DRESSING OR POLISHING ROLLS.

Patnted Dec. 22, 1896.

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iN 3 Sheets-Sheet 3. R. G. PILKINGTON.

. APPARATUS FOR DRESSING OR POLISHING ROLLS. No. 573,528. Patented Dec.22, 1896.

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m: mums PETERS cmnuo'muma. wmmmon n c UNITED STATES PATENT OFFICE.

ROBERT G. PILKINGTON, OF ST. LOUIS, MISSOURI.

APPARATUS FOR DRESSING OR POLISHING ROLLS.

SPECIFICATION forming part Of Letters Patent No. 573,528, dated December22, 1896.

Application filed July 29, 1896- Serial No. 6C0,9'75. (N0 model.)

T 0 a/ZZ whom, it may concern:

Be it known that 1, ROBERT G. PILKINGTON, a citizen of the UnitedStates, residing at St. Louis, in the State of Missouri, have inventedcertain new and useful Improvements in Apparatus for Dressing orPolishing Rolls; and I hereby declare the following to be a full, clear,and exact description thereof, reference being had to the accompanyingdrawings, in which Figure l is a side elevation of apparatus embodyingmy invention, the horizontal support and guide-bar being shown intransverse section and the power-shaft broken olf. Fig. 2 is a frontelevation, looking in the direction of the arrow, Fig. 1, the horizontalsupport and guide-bar broken off at each side of the bracket-frame; andFig. 3 is a horizontal sec tion on the line a: 00, Fig. 2, looking inthe direction of the arrow on said Fig. 2.

Like symbols refer to like parts wherever they occur.

My invention relates to means for truing, dressing, and polishing therolls of metalworking mills, and has for its object the production of asimple and efficient readily-portable apparatus which may be employed totrue, dress, or polish any portion or the whole length of the rollwithout removing the roll from the housing, disconnecting it from itspower, or even stopping the rolls. The methods heretofore commonlypracticed for this purpose have involved either the removal of the rollsfrom their housings to a special lathe used for the purpose and theirtreatment therein or the disconnection of the usual power and theapplication of slow worm-gearing, all of which involved heavy labor andloss of time, or the application of concave clamp-blocks andabrading-powder to the rolls while in position in the housing and drivenby their usual gearing, which resulted in great friction and frequentlydeveloped so high heat as to interfere with the proper working of therolls, or the application to the rolls while in their housings ofspecial dressing devices of a cumbersome character and more or less slowin operation. To overcome these several objections and secure acomparatively light, simple, and efficient apparatus, rapid in itsoperation and which may be readily applied to and removed from theroll-housings or equivalent supports adjacent to the rolls to bedressed, I have combined with a suitable horizontally-adjustablebracket-frame a rocking arm for the operative tool, said arm beinglaterally adjustable on its support, and such a construction or itsequivalent embodies one feature of myinvention. combined with therocking arm which carries the power-shaft a rotating disk or face-platewhich carries the bearings of the abrading or polishing roll or liketool, whereby the tool may be reversed to dress or polish the roll onopposite sides of the vertical center of the roll, and such aconstruction or its equivalent embodies a second feature of myinvention.

There are other minor features of invention, all as will hereinaftermore fully appear.

I will now proceed to describe my invention more fully, so that othersskilled in the art to which it appertains may apply the same.

In the drawings, 1 indicates a horizontal guide-bar of sufficient lengthto extend between the housings of a metal-working mill and which may bedetachably supported thereon or upon any suitable independent supportstherefor. Movable longitudinally thereon is a bracket-frame 2, which maybe provided with ears 3, in which is journaled a pinion 4, controlled bya hand-wheel 5, said pinion 4 to engage a rack on or in the side of theguide-bar 1, or any other well-known means of causing the bracket-frame2 to traverse the guide-bar 1 may be adopted at the will of theconstructor. Projecting from the bracket-frame 2 are other parallel ears6'6,-

slotted, as at 7, to provide for the reception and lateral adjustment ofa through-bolt 8, which forms the pivot of a rocking or vibrating arm1.0 and provides for the vibration of said arm, as well as for itsadjustment across the bracket-frame 2, to or from the axis of the rollto be dressed.

The rocking arm 10 is provided with a sleeve 11 at right angles tobracket-frame 2, (andthe axis of the roll to be dressed or polished,)which constitutes a bearing for the powershaft 12.

2 indicates a shaft journaled in and pro j ecting from the sleeve 11, tobe driven by any suitable power, preferably by a flexible connection orone which will allow of the free vibration of arm 10 without detachingthe I have also ICO power, and journaled on said power-shaft atits-inner end and abutting against the inner end of sleeve 11 is a disk13, provided with bearings 14 14 for the shaft 15 of the abrading orpolishing tool. The disk 13 being free to rotate on shaft 12 can beturned a halfrevolution, so as to bring the dressing or polishing toolon either side of the powershaft, and thus facilitate the dressing of aroll for its entire length or at any given point.

Upon the inner end of the sleeve 11 is a locking link and cam orequivalent catch 16, adapted to engage the disk 13 by notches 17 orotherwise, and thus secure the disk in the desired position.

Power is transmitted from power-shaft 12 to shaft 15 of the abrading orpolishing tool 18 by miter-gearing 19 or its equivalent.

The operation of the device is as follows: The lateral adjustment of therocking arm 10 to or from the axis of the roll to be dressed isaccomplished by moving its pivot-bolt 8 to the desired position inslot-'7, and the position of the abrading-roll with relation to thevertical central line of the roll and power-shaft is accomplished byrotating the disk 13 and looking it in position, after which the arm isvibrated or rocked forward until it rests in position on the roll to bedressed, after which the power is applied to shaft 12 and theabrading-tool is caused to traverse the roll by shifting thebracket-frame 2 longitudinally of the guide-bar 1.

The construction hereinbefore pointed out results in the production of asimple, portable, easily-manipulated, and very efiective mechanism fordressing and polishing metalworking rolls which have become bruised anddefaced in use without .removing the rolls from their housings orderanging the gearing of the rolls, and in a very expeditious manner ascompared with the methods now commonly practiced.

Having thus described my invention, what I claim, and desire to secureby Letters Patjournaled on said arm; substantially as and for thepurposes specified.

3. In a machine for dressing and polishing rolls, the combination with avibrating arm, of a power-shaft journaled thereon, a disk looselyjournaled on the power-shaft and abutting against the vibrating arm,means for locking the disk to the sleeve, and a toolshaft journaled onthe disk; substantially as and for the purposes specified.

' 4. In a machine for dressing or polishing rolls,the combination withamovable bracketframe, of alaterally-adj ustable vibrating arm mountedthereon, a power-shaft journaled on said arm, a disk journaled on thepower-shaft, a tool-shaft journaled on the disk, and means for lockingthe disk to the vibrating arm; substantially as and for the purposesspecified.

In testimony whereof I affix my signature, in presence of two witnesses,this 27th day of July, 1896.

ROBERT e. PILKINGTON.

lVitnesses:

E. G. ORoFToN, CHAS. S. BROWN.

